I have recently setup a reverse proxy with the nginx addon for my home assistant server. Everything works well with the exception of the local calender integration. For whatever reason it throws an error “Could not retrieve events for calendars: <calander name>” when connecting through the external URL. I also get a failed login attempt but only if I open the calender tab.

Does anyone know why it does this and how to fix it? I would like to use the home assistant calender for my family and acces is while away from home.